904l insimbi engagqwali Plate iyinsimbi engagqwali superaustenitic eyenzelwe ukumelana nokugqwala okuphakathi nendawo ezindaweni eziningi.Inhlanganisela yokuqukethwe kwe-chromium ne-nickel, enezengezo ze-molybdenum nethusi inikeza ukumelana nokugqwala okuhle kakhulu.Ngenxa ye-nickel engu-25% ne-molybdenum 4.5%, i-ASTM B625 UNS N08904 inikeza ukumelana okuhle kokugqwala kwe-chloride yokucindezeleka, i-pitting kanye nokumelana nokugqwala okujwayelekile okuyi-supercorrosion resistance. ku-316L naku-317L.Ithuthukiswa ukuze iqhume izindawo eziqukethe i-dilute sulfuric acid.Ipuleti lensimbi engagqwali engu-904l linokumelana okuhle nama-acids angaphili njenge-hot phosphoric acid.Ingashiselwa kalula futhi icutshungulwe ngenqubo yokukhiqiza ejwayelekile.Ipuleti le-ss 904l liyi-ductile futhi lingakheka kalula.Ukwengezwa kwe-molybdenum ne-nitrogen kunikeza amathuluzi okucubungula anamandla futhi kungase kudingeke uma kuqhathaniswa namabanga ajwayelekile angu-304/304L.I-astm a240 uhlobo lwe-904l inokumelana okuhle kakhulu namanzi olwandle afudumele nokuhlasela kwe-chloride.Ukumelana kwayo okuphezulu kuphambene nokuqhekeka kokugqwala kwengcindezi futhi kungenxa yokuba khona kwamanani aphezulu e-nickel ekubunjweni kwayo.Ngaphezu kwalokho, ukwengezwa kwethusi kuthuthukisa ukumelana ne-sulfuric acid nezinye izinto zokunciphisa kuzo zombili izimo ezinolaka nezimnene.I-1.4539 plate material, inikeza ukumelana okuhle kwe-oxidation.Nokho, ukusimama kwesakhiwo kwaleli banga kubhidlika emazingeni okushisa aphezulu, ikakhulukazi ngaphezu kuka-400°C.ASTM A240 UNS N08904 impahla ingaba yisixazululo esiphathwa ngokushisa ku-1090 kuya ku-1175°C ngokulandela indlela yokupholisa ngokushesha.Ukwelashwa okushisayo kulungele ukuwenza lukhuni.Izicelo ezinkulu zeshidi le-1.4539 imishini yokuhluza uwoyela, izimboni zokucubungula i-Pulp nephepha, izitshalo zokukhuhla igesi, njll.
